Website development: what video courses or instructions to read?

Question

Search Engine Optimization

Good afternoon dear experts. I decided to seriously roll into the creation of sites for people. About five years ago I already created and maintained my own site on WordPress, but rather as a hobby. At the same time, it was a complete "zero". Naturally, there were a lot of mistakes, although it came to a visit of 150 people. per day. Then he dropped it. Now I have forgotten everything. But I would like to do it for real, not only as a hobby, but also for the purpose of earning money. Actually, I’m waiting for advice from experienced people about what video courses or literature to watch / read about creating sites from scratch, the correct formation of the semantic core, uploading the site to hosting and further promoting it, etc. It should be easy to understand even for noobs like me.